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OCZVTX450-25SAT3-128G
SamsungMZ-7PD128BW
▲ 51266 ▼

Controller: Indilinx Barefoot 3 M10 IDX500M10-BC. Flash Memory: IMFT Synchronous 20nm MLC. Release date: Q2 2013.

VS
▲ 542,764 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Effective Speed 
+19%
Real World Speed
Performance profile from 35,882 user samples
Benchmark your SSD here
1,040 User Benchmarks
Best Bench: 90% 130GB free
Worst Bench: 57% 72GB free (System drive)
Poor: 57% Great: 90%
SPEED RANK: 575th / 1080
34,842 User Benchmarks
Best Bench: 110% 62GB free
Worst Bench: 62% 119GB free
Poor: 62% Great: 110%
SPEED RANK: 344th / 1080
Effective Speed
Effective SSD Speed 		75.5 % 89.5 % Faster effective speed.
+19%
Average Score 
+20%
Read
Avg. Sequential Read Speed 		410 MB/s 444 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed 		268 MB/s 336 MB/s Faster write speed.
+25%
4K Read
Avg. 4K Random Read Speed 		20.1 MB/s 30.5 MB/s Much faster random read.
+52%
4K Write
Avg. 4K Random Write Speed 		87.6 MB/s Slightly faster random write.
+7% 		81.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		263 MB/s 268 MB/s +2%
4K Mixed
Avg. 4K Random Mixed IO Speed 		28.2 MB/s 35.9 MB/s Faster random mixed IO.
+27%
SusWrite
Avg. Sustained Write Speed 		217 MB/s 286 MB/s Much faster sustained write speed.
+32%
Peak Score 
+30%
Read
Peak Sequential Read Speed 		459 MB/s 497 MB/s Slightly faster peak read speed.
+8%
Write
Peak Sequential Write Speed 		283 MB/s 445 MB/s Much faster peak write speed.
+57%
4K Read
Peak 4K Random Read Speed 		23.7 MB/s 36.3 MB/s Much faster peak random read.
+53%
4K Write
Peak 4K Random Write Speed 		132 MB/s Faster peak random write.
+17% 		113 MB/s
Mixed
Peak Sequential Mixed IO Speed 		286 MB/s 331 MB/s Faster peak mixed IO speed.
+16%
4K Mixed
Peak 4K Random Mixed IO Speed 		33.7 MB/s 44.1 MB/s Much faster peak random mixed IO.
+31%
SusWrite
Peak Sequential Sustained Write 60s Average 		274 MB/s 440 MB/s Much faster peak sustained write speed.
+61%
Value & Sentiment 
+∞%
Market Share
Based on 77,549,205 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.06 % Insanely higher market share.
+∞%
Value
Value For Money 		6.96 % Much better value.
+35% 		5.17 %
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$80 Much cheaper.
+47% 		$150
Nice To Haves 
+9%
Age
Newest 		138 Months +5% 145 Months
DQ Read
Peak 4K-64Thread Read Speed 		301 MB/s 376 MB/s Faster peak deep queue read.
+25%
DQ Write
Peak 4K-64Thread Write Speed 		286 MB/s 330 MB/s Faster peak deep queue write.
+15%
AS-SSD Total
AS-SSD Total Score 		1,005 Pts 1,196 Pts Stronger server IO.
+19%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		262 MB/s Much faster peak deep queue mixed IO.
+69% 		155 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		265 MB/s 332 MB/s Faster deep queue read.
+25%
ADQ Write
Avg. 4K-64Thread Write Speed 		249 MB/s +2% 245 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		227 MB/s Hugely faster deep queue mixed IO.
+80% 		126 MB/s
Specifications 
Capacity
Capacity 		128GB 128GB
Conclusion 
Average Bench 75.5%
Average Bench 89.5%

The 128GB Vertex 450 has a reasonable but somewhat unusual performance profile. The main weakness is its sequential write speed which is only 282 MB/s peak. This implies that the 128GB version has fewer NAND modules than both its larger 256GB sibling and several other leading 128GB models. Other SSDs, including some 128GB models can consistently achieve sequential write speeds in the 500 MB/s range. A handicap of this magnitude on a key performance metric would normally relegate an SSD to the lower divisions but the Vertex 450 offsets its poor sequential write speed with a record breaking 4K write speed of 158 MB/s which is the highest I have ever seen on any SSD. Overall the Vertex 450 has an average, but quirky, performance profile and is reasonably priced however there are both faster and cheaper alternatives available on the SSD leaderboard.  [Feb '14 SSDrivePro]

MORE DETAILS

The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
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Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
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Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
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Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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